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From nlif <>
Subject Re: ClassCastException on MessageObject's object
Date Tue, 01 May 2007 06:01:34 GMT

Thanks, Christopher,

No, it's not. The broker and the consumer are on two different machines. The
transport is TCP.
We use Jencks for the consumer.
We're currently on ActiveMQ 4.1, but we had this problem on 4.0 as well.


Christopher G. Stach II wrote:
> nlif wrote:
>> Thanks, James.
>> Yes, I'm also inclined to think it's a class loader issue. But then, how
>> come it doesn't happen all the time?
>> What may cause it to load another version of the class only some of the
>> times?
>> Does ActiveMQ do anything... um, unconventional with class-loading?
>> Thanks,
>> Naaman
>> James.Strachan wrote:
>>> If you get a ClassCastException yet the object seems to be of the
>>> correct class name, then it looks like a class loader issue (multiple
>>> versions of the same class on the classpath). Otherwise if it was a
>>> serialization issue, you wouldn't get an object you can inspect.
> Is it a vm broker?
> -- 
> Christopher G. Stach II

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